From aa4f08e18f4879532915e655dcba667d3d0f7376 Mon Sep 17 00:00:00 2001
From: Derek Parker <parkerderek86@gmail.com>
Date: Fri, 21 Nov 2014 17:01:14 -0600
Subject: [PATCH] check tgkill error

---
 proctl/proctl_linux_amd64.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/proctl/proctl_linux_amd64.go b/proctl/proctl_linux_amd64.go
index 0fb0cc5f..e3063a2f 100644
--- a/proctl/proctl_linux_amd64.go
+++ b/proctl/proctl_linux_amd64.go
@@ -569,9 +569,10 @@ func timeoutWait(thread *ThreadContext, options int) (int, *syscall.WaitStatus,
 	case s := <-statchan:
 		return s.pid, s.status, nil
 	case <-time.After(2 * time.Second):
-		syscall.Tgkill(thread.Process.Pid, pid, syscall.SIGSTOP)
+		if err := syscall.Tgkill(thread.Process.Pid, pid, syscall.SIGSTOP); err != nil {
+			return -1, nil, err
+		}
 		<-statchan
-
 		return 0, nil, TimeoutError{pid}
 	case err := <-errchan:
 		return -1, nil, err